Submission #827939

# Submission time Handle Problem Language Result Execution time Memory
827939 2023-08-16T23:22:47 Z arnold518 Rarest Insects (IOI22_insects) C++17
54.01 / 100
145 ms 400 KB
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 2000;

int A[MAXN+10];

int min_cardinality(int N)
{
	for(int i=0; i<N; i++)
	{
		move_inside(i); A[i]=1;
		if(press_button()>1)
		{
			move_outside(i); A[i]=0;
		}
	}
	int cnt=0;
	for(int i=0; i<N; i++) cnt+=A[i];
	for(int i=0; i<N; i++) if(A[i]) move_outside(i);
	if(cnt==1) return N;
	if(cnt==2)
	{
		for(int i=0; i<N; i++) move_inside(i);
		return N-press_button();
	}

	int lo=1, hi=N/cnt+1;
	while(lo+1<hi)
	{
		int mid=lo+hi>>1, t=0;
		for(int i=0; i<N; i++)
		{
			move_inside(i); A[i]=1; t++;
			if(press_button()>mid)
			{
				move_outside(i); A[i]=0; t--;
			}
			if(t==mid*cnt) break;
		}
		for(int i=0; i<N; i++) if(A[i]) move_outside(i);
		//printf("%d : %d\n", mid, t);
		if(t==mid*cnt) lo=mid;
		else hi=mid;
	}
	return lo;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:36:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   36 |   int mid=lo+hi>>1, t=0;
      |           ~~^~~
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 8 ms 208 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 2 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 7 ms 208 KB Output is correct
13 Correct 7 ms 208 KB Output is correct
14 Correct 7 ms 208 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 8 ms 208 KB Output is correct
17 Correct 8 ms 208 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 3 ms 208 KB Output is correct
20 Correct 6 ms 208 KB Output is correct
21 Correct 4 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 8 ms 208 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 2 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 7 ms 208 KB Output is correct
13 Correct 7 ms 208 KB Output is correct
14 Correct 7 ms 208 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 8 ms 208 KB Output is correct
17 Correct 8 ms 208 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 3 ms 208 KB Output is correct
20 Correct 6 ms 208 KB Output is correct
21 Correct 4 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 8 ms 208 KB Output is correct
24 Correct 9 ms 208 KB Output is correct
25 Correct 37 ms 300 KB Output is correct
26 Correct 37 ms 308 KB Output is correct
27 Correct 6 ms 308 KB Output is correct
28 Correct 6 ms 304 KB Output is correct
29 Correct 42 ms 304 KB Output is correct
30 Correct 47 ms 304 KB Output is correct
31 Correct 73 ms 208 KB Output is correct
32 Correct 28 ms 300 KB Output is correct
33 Correct 40 ms 304 KB Output is correct
34 Correct 62 ms 300 KB Output is correct
35 Correct 22 ms 300 KB Output is correct
36 Correct 55 ms 280 KB Output is correct
37 Correct 39 ms 280 KB Output is correct
38 Correct 25 ms 320 KB Output is correct
39 Correct 19 ms 300 KB Output is correct
40 Correct 15 ms 208 KB Output is correct
41 Correct 8 ms 304 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 13 ms 336 KB Output is correct
8 Correct 12 ms 300 KB Output is correct
9 Partially correct 109 ms 300 KB Output is partially correct
10 Partially correct 98 ms 288 KB Output is partially correct
11 Correct 17 ms 336 KB Output is correct
12 Correct 42 ms 304 KB Output is correct
13 Partially correct 131 ms 300 KB Output is partially correct
14 Partially correct 81 ms 208 KB Output is partially correct
15 Partially correct 114 ms 308 KB Output is partially correct
16 Partially correct 93 ms 288 KB Output is partially correct
17 Partially correct 112 ms 292 KB Output is partially correct
18 Partially correct 88 ms 304 KB Output is partially correct
19 Partially correct 106 ms 376 KB Output is partially correct
20 Partially correct 109 ms 296 KB Output is partially correct
21 Partially correct 107 ms 300 KB Output is partially correct
22 Partially correct 41 ms 284 KB Output is partially correct
23 Partially correct 29 ms 308 KB Output is partially correct
24 Correct 40 ms 208 KB Output is correct
25 Correct 33 ms 284 KB Output is correct
26 Correct 12 ms 308 KB Output is correct
27 Partially correct 64 ms 304 KB Output is partially correct
28 Partially correct 74 ms 288 KB Output is partially correct
29 Partially correct 145 ms 308 KB Output is partially correct
30 Partially correct 131 ms 288 KB Output is partially correct
31 Partially correct 78 ms 208 KB Output is partially correct
32 Partially correct 88 ms 400 KB Output is partially correct
33 Partially correct 65 ms 284 KB Output is partially correct
34 Partially correct 55 ms 208 KB Output is partially correct
35 Partially correct 83 ms 304 KB Output is partially correct
36 Partially correct 49 ms 328 KB Output is partially correct
37 Partially correct 80 ms 308 KB Output is partially correct
38 Partially correct 83 ms 304 KB Output is partially correct
39 Partially correct 45 ms 288 KB Output is partially correct
40 Partially correct 55 ms 208 KB Output is partially correct
41 Partially correct 102 ms 308 KB Output is partially correct
42 Partially correct 72 ms 300 KB Output is partially correct
43 Partially correct 22 ms 208 KB Output is partially correct
44 Partially correct 140 ms 208 KB Output is partially correct
45 Correct 12 ms 304 KB Output is correct
46 Correct 27 ms 284 KB Output is correct
47 Correct 17 ms 300 KB Output is correct
48 Correct 31 ms 208 KB Output is correct